Question

Suppose now we wou ld like to see if getting the vaccine has an impact on the likelihood of getting the flu. We took a random sample of 1200 Americans and recorded if they got the vaccine and then followed them through the flu season to see if they got the flu. Use the output below to help you answer the questions that follow Contingency table results Rows: vaccine Columns: flu Cell format Count (Expected count) (Contributions to Chi-Square) Total no yes 82 (63) (0.57) (5.73) 26 (45) (0.79) (8.02) 618 no 700 (637) 474 yes 500 (455) Total 1092 108 1200 Chi-Square test: Statistic Chi-square 1 P-value DF Value 2? 0.0001

Answer 1

Response variable : flu ( Because flu is depend on vaccine)

Explanatory variable: vaccine

H0 : Response variable is not related to explanatory variable.

H1: Response variable is related to explanatory variable.

Reject H0 if p-value is less than 0.05